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51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
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t = db.mr_index3
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t.drop();
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t.insert( { _id : 1, name : 'name1', tags : ['dog', 'cat'] } );
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t.insert( { _id : 2, name : 'name2', tags : ['cat'] } );
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t.insert( { _id : 3, name : 'name3', tags : ['mouse', 'cat', 'dog'] } );
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t.insert( { _id : 4, name : 'name4', tags : [] } );
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m = function(){
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for ( var i=0; i<this.tags.length; i++ )
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emit( this.tags[i] , 1 )
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};
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r = function( key , values ){
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return Array.sum( values );
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};
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a1 = db.runCommand({ mapreduce : 'mr_index3', map : m, reduce : r , out : { inline : true } } ).results
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a2 = db.runCommand({ mapreduce : 'mr_index3', map : m, reduce : r, query: {name : 'name1'} , out : { inline : true }}).results
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a3 = db.runCommand({ mapreduce : 'mr_index3', map : m, reduce : r, query: {name : {$gt:'name'} } , out : { inline : true }}).results
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assert.eq( [
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{
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"_id" : "cat",
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"value" : 3
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},
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{
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"_id" : "dog",
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"value" : 2
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},
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{
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"_id" : "mouse",
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"value" : 1
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}
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] , a1 , "A1" );
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assert.eq( [ { "_id" : "cat", "value" : 1 }, { "_id" : "dog", "value" : 1 } ] , a2 , "A2" )
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assert.eq( a1 , a3 , "A3" )
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t.ensureIndex({name:1, tags:1});
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b1 = db.runCommand({ mapreduce : 'mr_index3', map : m, reduce : r , out : { inline : true } } ).results
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b2 = db.runCommand({ mapreduce : 'mr_index3', map : m, reduce : r, query: {name : 'name1'} , out : { inline : true }}).results
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b3 = db.runCommand({ mapreduce : 'mr_index3', map : m, reduce : r, query: {name : {$gt:'name'} } , out : { inline : true }}).results
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assert.eq( a1 , b1 , "AB1" )
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assert.eq( a2 , b2 , "AB2" )
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assert.eq( a3 , b3 , "AB3" )
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